This package is used to request that a JDI
event be sent under specified conditions.

The JavaTM
Debug Interface (JDI) is a high level Java
API providing information useful for debuggers and similar
systems needing access to the running state of a (usually remote)
virtual machine.

The JDI provides introspective
access to a running virtual machine's state, Class, Array,
Interface, and primitive types, and instances of those
types.

The JDI also provides explicit control over
a virtual machine's execution. The ability to suspend
and resume threads, and to set breakpoints, watchpoints, ...
Notification
of exceptions, class loading, thread creation...
The ability to inspect a suspended thread's state,
local variables, stack backtrace...